B1If people or things disappear, they go somewhere where they cannot be seen or found: The search was called off for the sailors who disappeared in the storm.I can't find my keys anywhere - they've completely disappeared.The sun disappeared behind a cloud.We looked for her but she had disappeared into the crowd.The film is about a girl who mysteriously disappeared while on a picnic at Hanging Rock.I don't know how it's possible for a person to disappear without trace.Losing and lossWinning and losingB2to no longer exist: These flowers are disappearing from our countryside.This is a way of life that is fast disappearing.